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PIC18F258-E/SOSQTP 数据表(PDF) 97 Page - Microchip Technology

部件名 PIC18F258-E/SOSQTP
功能描述  28/40-Pin High-Performance, Enhanced Flash Microcontrollers with CAN Module
PDF  402 Pages
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制造商  MICROCHIP [Microchip Technology]
网页  http://www.microchip.com
标志 MICROCHIP - Microchip Technology

PIC18F258-E/SOSQTP 数据表(HTML) 97 Page - Microchip Technology

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© 2006 Microchip Technology Inc.
DS41159E-page 95
PIC18FXX8
TABLE 9-1:
PORTA FUNCTIONS
TABLE 9-2:
SUMMARY OF REGISTERS ASSOCIATED WITH PORTA
Name
Bit#
Buffer
Function
RA0/AN0/CVREF
bit 0
TTL
Input/output, analog input or analog comparator voltage reference
output.
RA1/AN1
bit 1
TTL
Input/output or analog input.
RA2/AN2/VREF-
bit 2
TTL
Input/output, analog input or VREF-.
RA3/AN3/VREF+
bit 3
TTL
Input/output, analog input or VREF+.
RA4/T0CKI
bit 4
ST/OD
Input/output, external clock input for Timer0, output is open-drain type.
RA5/AN4/SS/LVDIN
bit 5
TTL
Input/output, analog input, slave select input for synchronous serial port
or Low-Voltage Detect input.
OSC2/CLKO/RA6
bit 6
TTL
Oscillator clock output or input/output.
Legend: TTL = TTL input, ST = Schmitt Trigger input, OD = Open-Drain
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Value on
POR, BOR
Value on
all other
Resets
PORTA
—
RA6
RA5
RA4
RA3
RA2
RA1
RA0
-00x 0000
-uuu uuuu
LATA
—
Latch A Data Output Register
-xxx xxxx
-uuu uuuu
TRISA
—
PORTA Data Direction Register
-111 1111
-111 1111
ADCON1
ADFM ADCS2
—
—
PCFG3
PCFG2
PCFG1
PCFG0 00-- 0000 uu-- uuuu
Legend:
x
= unknown, u = unchanged, - = unimplemented locations read as ‘0’. Shaded cells are not used by PORTA.



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